new scenario suggestion: aquire media capture without user interaction

Scenario: Face detection without user interaction with camera.
Description:
A authentication device using a browser is set on a entrance gate of meeting room, the device has camera and microphone, and no keyboard/mouse/touch screen etc. The browser is always connected with a control center web system. One man come to the meeting room, and make face near the device, the js app start capture video from camera without request user permission, then make recognition with the captured video.

Requirement derived:
We should let getUserMedia has a way to tell the UA we do not need user permission to capture video, and the UA need to have some configuration switch about it.


Yang
Huawei